I read the article and I am utterly disgusted that this man was fired - and for what? He is teaching in a tax-funded institution, not a rectory. If people want their kids to learn religion, send them to church (or similar). If they want their kids to learn science, send them to school. And if they feel that strongly about it, send them to a private religious school. No bitching about school fees: you either take responsibility for your child's religious education, or shut up. If your kid is that bright, get them to sit for a scholarship. Otherwise, accept that public schools aren't the place for religion and get over it.
So the Christians are jumping up and down, shouting that their religion has been "denigrated". Oh, really? What about the religions of other folk there? No one else has complained. The teacher has explained that he gave no more credibility or otherwise to any one god or religion over another. I don't see Buddhists and Hindus jumping up and down when Christians condemn their beliefs.
The beauty of science is that it learns and grows. It changes as new information comes to light, and claims to know only what can be demonstrated. And when it finds that it's in error, it corrects itself. Science is about observation and understanding, and that is all. It makes no claims as to whether there is or isn't a god. It simply works with the physical. End of story. I do not understand what is so difficult, or perhaps frightening, for the religious when it comes to this. The only way science could possibly threaten a person's religion is by demonstrating reality. And if science is going to make you disbelieve your religion, then there's something wrong with your religion. If it's true, it should be able to stand up to scrutiny. So, let it stand up. Let the chips fall where they may. Or are you too scared?
The bottom line is this: people are free to teach their kids whatever they like as far as religion goes, but when it comes to a non-religious school, don't expect special consideration to be made for you. Why should other people's kids miss out on an education just because you want to remain ignorant?